Demountable rim for automobile-wheels



W: i. BRUCE DENOUNTABLE RIM FOR AUTOMOBILE WHEELS.

APPLlCATlON FILED JUNEZB, I919.

1,347, 1 14 Emma-( 1 Juiy 192% an Danie;

C1 bl o uwz g Cit WILLHLQ J. BRUCE, 0F STEBCLING, ILLIIifi'lIS.

DEMOUNTABLE RIM F93. AUTOMOBILE-.YHEELS.

1,347,1eil.

' Applicetion filed June 23,

To all whom. it may concern Be it known that I, vVILLiAM J. Barron, a subject of the King of Great Britain, residingot Sterling, in the county of l i hiteside and State of Illinois, have-invented certain new and useful Improvements in Demountable Rims for Antoniobile-Wheels, of which the following is a specification.

.LMy invention has reference to demountable rims for automobile wheels, and has for its purpose to provide a simple and efiective ineans whereby the outer rim and tire secured thereto may be easily and expeditiously detached from the wheel. it is a recognized fact that whenever it becomes necessary to change or repair a pneumatic tire, especially when on the road, it is desirable to accomplish such operation with all. possible speed. As at present constructed the outer rim is attached to the telly of the wheel by a number of bolts and nuts, each of which has to be loosened or releasedbefore the rim can be removed, and again tightened when returning the rim to place. lhis results in a tedious and difficult operation,-even for those who are able to and ac-. customed to handling, tools, but almost i1npossible of accomplishment by women or young people. By the use oi my device the parts of the wheel'are held together in such a manner that they can be released by two or three blows oft ahanimer, and can be as readily replaced.

In the drawings:

Figure 1 shows an automobile wheel, in side elevation, equipped with my invention.

Fig. 2- is an enlarged detail of one of the lugs 8. I

Fig. 3 is a cross-section on the broken line of Fig. 2.

4- is a crosssection on "the line y---y of Fig. 2.

The first figure of the drawings shows the outer face of an automobile wheel, in which 1 is the hub. 2 the spokes, and 3 the telly supported thereby. 4 is the outer rim, loosely encircling the telly 3, and carrying the usual tire 5. At intervals the folly 3 is provided with bolts 6, passing through such telly and fitted on their outer ends with heads 7, of a clip formation. The inner ends of the bolts 6 are threaded and provided with nuts, not shown in the drawings herein.

The heads 7 are adapted for engagement with the outer faces of a series of lugs 8, projectin inwardly from aring 9, of suit- Specification of Letters Patent.

3 and rim l, holding the outer rirn tighth lam ness fs'eiy sees.

no. scenes.

193.9. Serial able dimensions to coverthe joint between the telly and rim 1, as will appear in Fig. 1 where apart of said ring is shown broken away. Each of the lugsS is provided with a recess 10, adapt-ed to receive a corresponding bolt 6. The forward edges of said lugs are inclined, as shown 11, and are provided on their lower faces witloppositely disposed beveled faces 12. such parts are driven together the ring 9 is forced tightly against the faces of the "telly "f. in position. All oi the lugs can simultaneously seated beneath the several bolt heads by imparting to the l) slight amount of rotati n, the heads being always in position with their beveled ends toward the logs. The nuts on the inner ends of the bolts 6 are adjusted so that a space is left between the head 7 thereon and the telly 3 to accommodate the lug 8 at its thickest point, and when the bolts are fully seated in the ends of the recesses 10, with the flat inner faces oi the heads against the flat outer faces of the lugs, as shown in. Fig. 3, said lugs and heads will be in close contact, so as to clamp the rim tightly in place. Said parts can be released by giving to the ring 9 a slight rotation in the direction opposite to that by which. the parts were engaged. This can be accomplished by the blow of ham- Iner or other tool.

' One of the lugs 5 provided with groove 3 sorted to rec he inner face of the groove 13, am hold sale. Irene accidental 01. a i 4 14. 1- lmrtfubfi. i. its on or one [M16 pin 1s pro vided rith a head 18, by means of which it can be forced into position in the groove, or driven therefrom. When the pin is in position 1t locks the bolt 6 1n rront oi; which it .18

held, in place in the recess 10, and prevents.

with 2.. other article of snnicient .Ce aid in giving to the ring 9 the desired turning movement such ring is provided with one or p more outwardly projecting lugs, as at 19,

bination With a Wheel and an auxiliary rim 1 mounted removably thereon, a series of bolts fixed in the felly of said Wheel, and provided with engaging members on their outer ends;

a ring adapted to hold said auxiliaryrim invplace on said Wheel; a plurality of lugs projecting inwardly from said ring and 1 adapted for connection with said bolts and 15 engaging members; and a lock-pin remov ably held in one of said lugs, and capable of holding'such lug and the accompanying bolt from accidental release.

Intestimony whereof I aflix my signature. 20

WILLIAM J. BRUCE. 

